Filling machine



' 1;635,754 July 12, 1921. K' KIEFER FILLING MACHINE INVENTOR l, July 12,1927. Kt KIEFER #A 635 754 FILLING MACHINE INVENTDR lll Patented July 12, 1927.

l g g1,635,754 PATENT OFFICE.

i yKARL KIEFER, `0F CINCINNATI, OHIO.

FILLING v MACHINE.

Application nieu December is, 1922. serial mi. 607,756.

or tables 12, which have stems 13 (Fig. 1) l My invention relates to machines fork filling containers with liquids,- and more kespecially to' such machines which are designed to place in each container a uniformr weight of liqiiiid.

T he'obect ot'niy invention is to simplify p and' increase the reliability and accuracy'L of such machines, and especially to provider a compactk construction and .f arrangement whichwill occupy small floor space rela-4 tively to its capacity, easy to adpist for con` tainers of variousk sizes. `Other? objects twillv appear in the courseof the ensuing description. f .y ,k I attain these objects by the device illusf trated, for example, iii the accompanying drawings, in which-- Figure 1 is a side elevation ot the complete machine Fig. 2 is a partial horizontalcross-sec` tion on the plane of the linie 2*-2 of Fig.` 1, showing thek yoke, parts of which are broken away, for clearness, and the scale beam resting thereon, the view being enlarged;

Fig. V3 isa partial front elevation oithek upper part of` the machine, on' the sameen-` larged scale as Fig. 2k; y

Fig. 4 is a vertical front-to-rear section on the plane ot the line 4--4 ot' Fig. 3;r

Fig. 5 is a partial plan view of the ma.-L chine, with the reservoir lid removed, and

middle parts of lthe float being broken away,

to show the toggle tloat-aiid-valve connection;

Fig valve-holder and part of enlarged; and

. 6r is a detail perspective viewof vthe its stem, 'further Fig. 7 isa similar View lof av vaflvetoy lit,

the holder, similarly enlarged.

The tripod base lcentrally supports thel standard 2, which 'is threaded from the base up to near its top.y `The yoke 3Acomprises a hub 4 embracing ythe standard 2, split to forni jaws 5 which are drawn together by a screw 6 to clamp the yoke`l3 rigidly on the standard. A handwheel 7 hasits hub in the form ot' a nut 8 traveling on the threads of the standard 2, .for running the yoke 3 up or-down when its clamping .jaws are .loosened. y' 1 This yoke 3 extends laterally from its hub, equally on both sides', curving upward and terminating in crotclies 9 iii the transverse vertical plane of the standard axis; and it has front and rear arms 10 witlieyes 11 at their ends forming rests'for the scale pans reservoir base, in which :down through the eyes 11, with pivots 13 'ends of which are extended into sockets in the front and rear, respectively, of the hub 4, with pivots 14 passing transversely through the links 14 into the sides of the hub sockets. The scale beam 15 comprises separate members 16 straddling the stand-` ard 2, with knife edges 17 in the crotches 9, and having transverse integral parts end parts 18 joining the ends of the members 16 together, with knife edges 19 at opposite ends receiving crotches 20 of the tables 12. lhese tables are kept almost exactly vertical by the links 14, which are used instead of a single link connected to both stems 13 as usual in balances, in keeping with my iinproved symmetrical arrangement of the column 2 and the scale, with the tables 12" syminet'ric'al to the front-to-rear Vertical plane oiv the standard axis.

The reservoir 21 comprises a cylindrical shelland a base 22 sloping to an outlet 23` vlike.A This inlet has a valve seat around it,

and a valve 26 slides in the inlet, guided by its radial vanes 27 against the inlet walls. The toggle 28 comprises a link 29 with one end pivoted to the valve 26, and a two-part link 3() with one end pi'votally connected to the` :Front wall of the reservoirl by a pin 31 in slots 32 formed in lugs on the it is held by pins 33. Both links 29 and the stem 34 of thefloat 35, which is a cy'- lindrical liquid-tight hollow body with its stem at its center, projecting downwardly.'y

30 are'pivoted to ioc ing the height oil? liquid maintained in the reservoir. A lid 36 closes the top of the reservoir.

The spout 37 comprises the horizontal i part leading radially forward from the res- *its rear end clamped around the standard 2.

icio

The lower end oin this spout part 38 is threaded :iteriorlyy and the nozzle 40,

, thereon, has the internal upwardly facing ilil' an wl its cent al outlefl. The l leady a; om the top o along the 'front olf the mum height ot' i uid passage.

This Y L lot t6 (Fig. o.) open ai' one sigle l the valve l? V o. I n hi bottoni 45,

slid radially i-.flot. rl`he va rc treat conical.

and e out th aluiife lic-ad Till,

lThe rocltine' member 5l comprises the shalt jourirlefgl trausverf-clr in a bearing formed in the Yliront ot' the upright spout part 5355 opposite the lmrizonza? parl'. and elements i3 and at opposite sides olL the snort. lined on the shatt: the one :it the leftp t. 3l uit l' backward and being connected l) ol thc valve stem by a link extending' up close alongside the casing Ll-l. The element :ft thc rie'ht extends down in the 'form oi'lv a paivl ci k d by a detent 56 on the end o5) a lever or having its ulcruiu in a lateral lue' 59 on the brac-het 39 and extending b. 'liivard bevond 'thc standard 2, with r countcrpoise of) near .itsI rear end, adjuf` 'i thercalcng and cl-.unped thereto bv a screw (5() (F l). rlhe front s lever is veri, short, and 'the ile arm of thi Weight of the much longer rear arm and co*- nterpoise holdf-z d cnl gagenient with the paivl th Preteral'ily, die paul and d-Jiteiit ened steel. to retain their acc icy ot gagement. i-ilso preferably. adiiuiiag scrcuv (il is threaded up through the bracket 39 linst to the rear ol the lever 'lulcrunn as a stop for the rear arm ol" the lever. This permits the rise olI the lever detent. on the trout arm, to be so limited that only a very slight engagement ot' the paivl and de'tent is made, so that the pavfl is released by a very slight swing oli the lever 57.

The element il also entendi-i up 'troni the shaft in th 'torni oit a handle SQ, to which is pivoted the rod (3:3 ot :i plan in a dash-pot 6l having its rear end pivoted on a stud Gel on the side ot the bracket 39; this plunger, When the spout valve descends, forcing air out through the rear outlet of the dash-p0t, more or less restricted by a regulating screw 65 (Fig. l).

The push-rod 66 is clamped in a clamphead 67 which is clamped to an edge of the rear scale pan or table l2 at the right, and extends upward and over to the lett, in a terminal horizontal part 68 (Fig. 3) under the long rear arin of the lever 57.

As liquid enters the reservoir 2l through its inlet 25, it raises the float o5, which pulls 7 up the links 29 and 30, tending' to straighten the toggle formed hy them and iucreasing its elteetive length, until it tori-cs the valve tightly shut.

With the float adjustable up and down on its stem 34e as before described, and the ample opening of the inlet valve permitted by the toggle operation as controlled by this float, and the prompt and eliectire closure thereby upon the required liquid level being reached, the device may be made to maintain a practically co11f-;'tant level oi" liquid in the reservoir 2l, so that the hcad" olf liquid, cz'iusing liovv out through the spout- 37 is practically constant. T he toggle action is very strong and certain.

The parts are. so designed that when ythe paWl part ot the element 54 is held by the lever 57 beliore described, the oppoeite element through the connection ot the l'- link 55 and stem 49, holds the valve holder 43 and the valve i7 thereon up, lor outlet c'l liquid through the nozzle Ll0 into the container A held on the Yfront scale pan or table l2 While Weights B of the desired amount occupy the rear pan or table l2 l). lllith the push-rod 6G adjusted to the proper height in its clamp-head (5T, the instant l[l the container A has received the weight ot .liquid to balance the Weights B, the rear pau or table 12 is raised, engaging the part G8 ot the pushrod GG With the lever 5l', raising the rear lever arm and lowering llll the front lever arm, away trom the l awl part ol? the element 54. The valve elements inside the spout, thus released, fall very quickly.l by their own Weight and that ot' the head ot' liquid theretofore rushing past the valve. The supply of liquid to the container thus `is shut oft at practically the instant it has reached the desired Weight in the container, Without lag of the valve parts; and, owing to the constant head maintained by the toggle and floatin the reservoir, the closinginfluence of this head it: practically constant. so that the minute time :lactor of closing always can be accurately compensated for in the construction ot the machine. The very sudden closingot'V the outlet valve is cushioned by the dash-pot` so that noise and Wear of the parts is min?4 mized.

There containers oi' greater or less height are to be filled, the entire scale can be adjusted down or up on the standard and 139 with the nozzles.

cure by Letters 'Patent is:

1,os,s,754

vthen held rigidly in its new position. v ThepuSh-rod 66 can be correspondingly adjustchange nozzles 40; the very large nozzle not f fitting a small container neck with its discharged stream, and the verysmall nozzle,

of course, .being too slow in its ,discharge for economically kfilling the larger containers, permitting large discharge stream into their, larger necks. Also, as the small valve for a large nozzle would limit its capacity, itis desirable to have the valves changeable This is very yreadily done, with my invention, by unscrewing they nozzle 40, allowing the valve holderfl with the valve 47 thereonv to drop partly from 'the lower end `ofthe spout part 38, as is permitted by the controlling connections previously described, and slipping the valve ofi the holder sidewise; the substitute larger or smaller valve being slipped onto 'the holder and returned up into the spout, and the substitute corresponding nozzle being screwed in place on thevspoutend.

Certain constructional details have been described specifically herein, and these are preferable in connection withy my invention, but I do not Wish to be understood as being limited to such precise showing and description, but having thus fully described my invention, WhatI claim as new and desire to sel. In a iillingmachine, a reservoir having an inlet, a valve controllin said inlet to said reservoir, a fioat in ysai reservoir,

toggle connected to said valve and to saidl `iloat,fa spout leading from said reservoir,

a weighing scale extending under said spout tofhold a container,thereunder, and means whereby said scale controls outlet from said spout.

Q. In a filling machine, a reservoir, a spout leading from said reservoir, a weighing scale extending under said spout to hold a container thereunder', a y valve Controlling outlet from said spout, a` inembei' connected to said valve, a lever retentively engaging said member to hold said valve open, means vconnected to said scale to release said lever from said valve-connected member, and a dash-pot having a plunger engaged by said member on release, to cushion closing o't' said valve. f

3. In a filling machine, a standard, a reservoir on said standard, a float-actuated valve controlling inlet to said reservoir, a spout leading from said reservoir down- 'wardly` a nozzle detachably mounted on said spout. having au interior valve seat, a. valve holder guided inside said spout, a valve detachably mounted on said'holder to engage said seat, a weighing scale mounted on said standard and extending under said spout to hold a container thereunder, and .means whereby said scale controls movement ol said valve holder.

l. In a filling inachii'ie, a standard, a reservoir mounted symmetrically on top ot said standard, a spout lead-ing from said reservoir radially to said` standard and liaving an upright part vri-iin a having a valve seat tl leading up bottom outlet round, a casing n part alongside a guide opening said reservoir and in its top, a valve tor said seat, sliding in v said upright part, a stem on said valve eir-y t-ending up through said casing` and guide c opening, a journaled transversely onk said spout,y radial `elements tixed on said shatt at opposite sides oi' spout, a rod connecting one element to said stem above said casing, a weighing scale having a beam with separate iii-embers stiaddling said standard andextending under said spout to hold a container thereunder, a lever. retcntively engaging the other radial element to hold said valve open, and means connected to said scale to release said lever from said other r lial element.

5. In a ii ing machine, a standard, a reservoir mounted symmetrically on top of said standard, a spout leadino' from said reservoir radially to said standsard, a. valve inA said spout, controlling outlettherefrom, and having a connection extending outside said spout, a rocking member mounted across said spout and opera-tively related to said valve connection at one side of said spout, a lever retentively engaging said member at the other side ot said spout. to hold said valve open, a scale having a beam with separate members straddlingsaid standard and extending under said spout to hold a container thereunder, and means connected to said scale to release said lever from said rocking member.

6. In a filling machine, a standard, a reservoir on said standard, a spout leading from said reservoir, a. weighing scale having a beam with separate members straddling said standard and extending under said spout to hold a container thereunder, and having an opposite part to be Weighted, beyond said standard 'trom said spout, rising when the container is filled, a valve controlling outlet from said spout, a member connected to said valve, a lever rctentively engaging said member to hold said valve open and having a part beyond its fulcrum, eX- tending beyond said standard, and means connected to said opposite part of said scale to engage this extended part of said lever and release said lever from said member as the scale part rises.

7. Iny a. iilling machine. a standard. a reservoir mounted symmetrically on topy of said standard, a spout leading from said reservoir radially to .said standard, a `yoke embracing,l said standard, a Weighing scale having a beam ulcrumed on said yoke with separate members straddling said standard and extending.; unde'r sait lpout to hold a container thereunder, and means whereby Said scale controls outlet from said spout.

8. In a illing' machine, a Standard, a reservoir mounted sylnmetrieall)v on top of said standard, a spout leading;l Jfrom said reservoir radially to said .fetznidard a yoke embracing Said standard and adjustable up and down thereon a weighing' scale ha\\'in,; a beam lulerumed on said yokey and ez-: uling under said spout to hold a container thereunder, a valve emilrolling outlet "trom Said spout. a nienfiber coimected to said valve, a lever retentvely engagingsaid member to hold said valve open, and means connected to said scale for adjustment up and down thereon, to release said lever from said member when said yoke, carrying said scale, is adjusted to variousl heights.

9. In a filling machine, a reservoir, a tilling spout leading from said reservoir, and a weighing scale in receptive relation to said spout, said reservoir, said spout and said scale all being symmetrical to a single vertical plane, controlling means at one side ot said spout, under said reservoir, in operative relation to said scale, and extending across said spout, a valve controlling outlety 'from said spout, and a connection from said controlling means to said valve, at the opposite side of said spout, whereby said scale controls said valve.

KARL KIEFER. 

